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| ACCESSION | PLANT NAME | TAXONOMY | ORIGIN | GENEBANK | IMAGE | AVAILABILITY | RECEIVED | SOURCE TYPE | SOURCE DATE | COLLECTION SITE | COORDINATES | ELEVATION | HABITAT | IMPROVEMENT LEVEL | NARRATIVE | | |
|---|
| 0 | PI 667737 | 'Roberts' | Glycine max (L.) Merr. | South Dakota, United States | SOY | | | 2013 | DEVELOPED | | | | | | Cultivar | Roberts was originally the F5 progeny of a single F4 plant derived from the cross Surge x A96-492041. The cross was made in the summer of 1998, and the progeny was advanced to F4 generation by single pod descent during the winter of 1998 through the summer of 2002. In 2003, 13 F5 progeny rows from segregating population were selected. Subsequently, these lines were yield tested in 2004 and 2005 (F6-F7) in multiple locations. The experimental line SD03-2154, selected from these lines, was further evaluated in the USDA Uniform Soybean Test ? Northern Region: Preliminary Test 2006 and Uniform Test 2007-2009, and the South Dakota Crop Performance Test (2006-2008 and 2010-2012). Fifty phenotypically uniform rows were harvested to produce F9 breeders seed in 2007, and the seed was further increased in 2008-2009. In 2011, F13 breeder seed was re-produced and given to SD Foundation Seeds Stock Division. The foundation seed was produced by SD Foundation Seeds Stock Division in 2012. This variety is conventional (non-roundup ready), MG0 (relative maturity 0.6-0.7), high yield, good quality, Phytophthora rot-resistant, and about 1-2 days earlier than Surge. The average yield over multiple years and locations was 42-54 bu/a, 2.2-6.5% higher than Surge and 2.4-4.3% higher than Sheyenne. At 13% moisture, the protein content was 35.1-37.1%, and the oil content averaged 17.9-19.6%. It possesses resistance gene Rps 1k to Phytophthora root rot. It matured 108-119 days after planting in South Dakota and 116-125 days in the regional tests. On average, it had a 32-inch plant height, 1.0-1.9 lodging score, and 1.6 seed quality score. | 1909718 | PI 667737 |